On Wed, May 3, 2017 at 12:30 AM, Denis Kudriashov <[email protected]> wrote:
> Could you check how it works with Pharo5 which was based on prespur CogVM? > Note, Pharo 5 Release was a Spur VM. Try using... http://files.pharo.org/get-files/50-preSpur/ http://files.pharo.org/image/50-preSpur/50495.zip or even Pharo 4. cheers -ben > > 2017-05-02 16:36 GMT+02:00 Raffaello Giulietti < > [email protected]>: > >> Hello, >> >> I'm on Pharo 6 (32 bit)/Windows 10 (64 bit). >> >> I'm trying to load and use the (32 bit) JVM DLL into a running Pharo >> image via the UFFI. >> >> Everything works correctly, including JVM method invocations, except when >> trying to set the minimum and maximum JVM heap size by passing the >> -Xms<size> and -Xmx<size> options upon JVM creation. With these options, >> Pharo simply crashes without leaving any trace. >> > Can you isolate whether the problem is either one of those, or it happens with both, and if there is some cutoff where it works? Also, perhaps try limiting heap being used by Pharo --memory <size>[mk] use fixed heap size (added to image size) --mmap <size>[mk] limit dynamic heap size (default: 1024m) [out 2G on 32-bit) --maxoldspace <size>[mk] set max size of old space memory to bytes (disclaimer, I'm not too knowledgeable on these, just pulled them from --help) Also consider that heap needs to be contiguous... ** http://stackoverflow.com/questions/2457514/understanding-max-jvm-heap-size-32bit-vs-64bit cheers -ben >> Apparently, memory management requests from the JVM interfere with >> Pharo's own memory management. >> >> Please note that we successfully use the same mechanism for both >> VisualWorks (32 bit)/Windows 10 (64 bit) and Gemstone 64 bit/Linux, so it >> seems it has to do with a Pharo limitation somehow. >> >> Further, I couldn't find any documentation on how to increase Pharo's >> working set. >> >> So the questions are: >> * What is the most probable cause of the crash described above? >> * Where is there more doc about Pharo's memory configuration settings? >> >> Greetings >> Raffaello >> >> >> >
